When you leave the University as an employee (staff, postdoc, etc), your email and library access have grace periods:

Email and Kerberos

Your email account will last for 90 days, and then you will be reminded it will be going away within the next month.  Therefore, your email lasts for three months, plus a bit.  Your kerberos access to campus websites will vary depending on the owner of the site.  Expect kerberos access to be curtailed quickly.

Extension of Email and Kerberos

You can willingly extend someone's email and kerberos access (or grant a visitor access) using the Online Temporary Affiliate Form.  This requires input from the person requesting the extension, their PI, the Chair, and the MSO.  Sounds daunting, but it's quite simple.

Library Access

The library terminates your book access immediately after your departure from the University.  To determine when that happens, call Circulation at 2-1204.

Extension of Library Access

After checking with Circulation and finding the exact date of your access privilege termination, you can call Marianne Hawkins at 2-9852, Head of Circulation and discuss an exception.  It should be your PI making the call, of course.

Filing Fee

On filing fee, if you currently have DavisMail, that will stay in effect ad nauseum (err...it never goes away, I mean).  Your UCD Login ID will last for 90 days but you can extend it by asking your PI to make you a Temporary Affiliate with the FIVE-STEP process outlined in the link below:

http://taf.ucdavis.edu

It's a lot of emailing and form filling out, all done online, so make sure you keep up on the process to remind your faculty member their role in it.  PI begins the process, you go next, then the PI sends it to the Chair or MSO, one of them approves, then you have access.  The following day.